https://github.com/pilotak/movingaverage

Arduino & Mbed Library for averaging fixed-point numbers
https://github.com/pilotak/movingaverage

arduino arduino-library averaging-filter filter mbed mbed-os moving-average

Last synced: 11 months ago
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Arduino & Mbed Library for averaging fixed-point numbers

• Host: GitHub
• URL: https://github.com/pilotak/movingaverage
• Owner: pilotak
• License: mit
• Created: 2017-12-22T15:59:58.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2024-10-11T07:42:25.000Z (over 1 year ago)
• Last Synced: 2025-04-14T14:57:20.175Z (about 1 year ago)
• Topics: arduino, arduino-library, averaging-filter, filter, mbed, mbed-os, moving-average
• Language: C++
• Homepage:
• Size: 36.1 KB
• Stars: 3
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Moving average filter

[![build](https://github.com/pilotak/MovingAverage/workflows/build/badge.svg)](https://github.com/pilotak/MovingAverage/actions) 

[![Framework Badge Arduino](https://img.shields.io/badge/framework-arduino-00979C.svg)](https://arduino.cc)

[![Framework Badge mbed](https://img.shields.io/badge/framework-mbed-008fbe.svg)](https://os.mbed.com/)

**_Buffer_** type can be:

 - `uint8_t` or `int8_t` with maximum buffer length of **16843009**

 - `uint16_t` or `int16_t` with maximum buffer length of **65537**

 - `uint32_t` or `int32_t` but added number can be as long as 30 bits which eaquals to maximum buffer length of **2**, 29 bits number = max buffer length of **4**, etc.

**_Buffer length_**:

- power of 2 only: 2, 4, 8, 16, 32, 64, 128, etc.

## Arduino example

Please see `examples` folder

## Mbed example

```cpp

#include "mbed.h"

#include "MovingAverage.h"

// Buffer (and added samples) will be initialised as uint8_t, total 16 samples

MovingAverage  filter;

int main() {

    printf("result: %u\n", filter.add(255)); // insert new number and get result

    printf("result: %u\n", filter.add(6));   // insert new number and get result

    printf("result: %u\n", filter.add(9));   // insert new number and get result

    printf("result: %u\n", filter.get());    // get last result, without adding a newone

    return 0;

}

```

### Output

> result: 255

> 

> result: 239

> 

> result: 224

> 

> result: 224